Sider records 2,644,740 monthly visits with -10.6% month-over-month growth and Freemium pricing. Word Express (GPT4Office) records 0 monthly visits with 0% growth and Free Trial, Paid pricing.
AI sidebar and browser agent for reading, writing and research
A GPT-powered Word add-in for writing, images, voice and transcription
| Dimension / Metric | | |
|---|---|---|
| Official Domain | sider.ai | gpt4office.com |
| Pricing Model | Freemium | Free Trial, Paid |
| Monthly Visits | 2.64M (2,644,740) | 0 (0) |
| MoM Traffic Delta | -314.2K (-10.6%) | 0 (0%) |
| Primary Market & Share | 🇺🇸 United States (13.3%) | 🌐 Global (—) |
| Direct Visits / mo | 1.7M | 0 |
| User Rating | 4.5 | 2.3 |
| Supported Platforms | Website | Website |
AI sidebar and browser agent for reading, writing and research
A persistent panel that reads the page you are on and answers follow-ups with GPT, Claude or Gemini without copying content into another tab.
Summarise long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material.
Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move.
Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions.
A GPT-powered Word add-in for writing, images, voice and transcription
Prompt GPT models from a Word task pane to generate paragraphs, outlines and full article drafts without leaving the document.
Rephrase sentences, adjust tone, or condense long sections into short summaries directly in the open document.
Create AI-generated illustrations from text prompts and insert them into your Word file.
Convert audio recordings into editable text for meeting notes, interviews and dictation.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
AI translation for text, images, documents and speech in 100+ languages
AI translation for text, images, documents and speech in 100+ languages
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
On-premise translation and speech recognition for enterprises
On-premise translation and speech recognition for enterprises
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.
Bring ChatGPT, Claude and Gemini into Google Docs, Sheets, Slides and Gmail
Bring ChatGPT, Claude and Gemini into Google Docs, Sheets, Slides and Gmail
AI presentation maker that builds native PowerPoint and Google Slides decks
AI presentation maker that builds native PowerPoint and Google Slides decks
One AI translator for documents, images, video and text
One AI translator for documents, images, video and text
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider.
Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider.
